Good husbands cannot be that masculine. A mixed team from Indiana University Bloomington, University of Virginia and University of Southern Mississippi investigating a natural population of Carolina dark-eyed juncos (Junco hyemalis carolinensis) found that natural fluctuations in testosterone levels are linked to a m... |
17 October 2007 03:26 GMT |
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We call them colonies, but they are in fact just huge harems. In the case of the northern fur seals, the first to invade the beaches in March are the males. Once they reach the sand, they become aggressive with each other, fighting for the best spots. They do not even go fishing into the sea, to keep the best locatio... |
1 October 2007 16:36 GMT |
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If you're a monogamy adept, do not try to find it in nature, too. Even in cases of classical monogamy, it has been proven that the brides go outside the wedlock. The newest busted myth is that of the foxes. Researchers have considered foxes, wolves and coyotes (the dog like carnivores in the Canidae family) to b... |
26 July 2007 06:36 GMT |
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If we take a look at our closest relatives, we will find that chimps are highly promiscuous: males form brotherhoods inside their group, a fact that impedes them from competing and fighting for mating. That's why also females are not impeded from mating with any male. If we look at bonobo (also wrongly called py... |
25 June 2007 15:06 GMT |
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It's like there's just the two of you in this world. But after the "fire" of the beginning passes and you start building on your relationship, and you realize that many "hungry eagles" hover around. Can they be dangerous? In a committed relationship, partners have to assume that their connection is too stro... |
25 June 2007 14:51 GMT |
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